haamember.blogg.se - Backyardeos review

Posted in Astrophotography, Big Scope Chronicles, Equipment Reviews, Image Processing, Images, New Equipment

No lens correction profiles used at all.

Sky background flattened with GradientExTerminator.

2x Drizzle then downsample back to original size.

Adaptive Heterogeneity-Directed (AHD) Interpolation.

151 Raw light files calibrated with 64 flats and 64 bias.

Overlay: Nikon APS-C (because Nikon at 1.5 is a wider FOV than Canon’s 1.6x crop factor).

ASCOM Dither every 10 frames via BackYardEOS.

150 x 15 seconds (37.5 minutes total exposure).

You have to download the full-resolution, full-frame 8-Bit TIFF of Cassiopeia shot with the Sigma Art 105mm f/1.4 lens on Google Drive (a 57mb file) and look at the corners at 100% magnification. You really won’t be able to check them out at the size of this small image on this page. Check out the corners at 100% and decide if you can live with them at f/1.4… 😎